therefore avoids changing any cases that potentially might invoke
undefined behavior. This patch does optimize (x<<((y&31)|8))&255.
This patch has been tested on x86_64-pc-linux-gnu with "make bootstrap"
and "make -k check" with no new failures. OK for mainlin
t; with no new failures. Ok for mainline?
2021-08-22 Roger Sayle
gcc/ChangeLog
* tree-ssa-ccp.c (bit_value_binop) [TRUNC_MOD_EXPR, TRUNC_DIV_EXPR]:
Provide bounds for unsigned (and signed with non-negative operands)
division and modulus.
Roger
--
diff --git a/gcc/tree-ssa-ccp.
accurately prevent us generating
dubious RTL for) those.
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and "make -k check" with no new failures.
Ok for mainline?
2021-08-20 Roger Sayle
gcc/ChangeLog
* simplify-rtx.c (simplify_truncation): Generalize simp
ful for implementing clock() on nvptx in newlib.
Ok for mainline?
2021-08-19 Roger Sayle
gcc/ChangeLog
* config.gcc (nvptx-*-*): Define {c,c++}_target_objs.
* config/nvptx/nvptx-protos.h (nvptx_cpu_cpp_builtins): Prototype.
* config/nvptx/nvptx.h (TARGET_CPU_CPP_
run CSiBE with -m32 and get back
to you with the results.
Roger
--
-Original Message-
From: Richard Biener
Sent: 20 August 2021 08:29
To: Roger Sayle
Cc: GCC Patches
Subject: Re: [x86_64 PATCH] Tweak -Os costs for scalar-to-vector pass.
On Thu, Aug 19, 2021 at 6:01 PM Roger Sa
;
}
This patch has been tested on x86_64-pc-linux-gnu with "make bootstrap"
and "make -k check" with no new failures. Ok for mainline?
2021-08-23 Roger Sayle
gcc/ChangeLog
* match.pd (shift transformations): Change the sign of an
LSHIFT_EXPR if it re
Many thanks. Here’s the version that I've committed with a ??? comment as
requested (even a no-op else clause to make the logic easier to understand).
2021-08-24 Roger Sayle
Richard Biener
gcc/ChangeLog
* config/i386/i386-features.c (compute_convert_gain): Provide
ing newlib) and a "make check" with no
new regressions. Ok for mainline?
2021-08-27 Roger Sayle
gcc/ChangeLog
* config/nvptx/nvptx.md (*extend_trunc_2_qi,
*extend_trunc_2_hi, *extend_trunc_di2_si): New insns.
Use cvt to perform sign-extension of truncation in one
n the tree [nvptx is currently a STORE_FLAG_VALUE=-1 target].
Ok for mainline?
2021-08-27 Roger Sayle
gcc/ChangeLog
* combine.c (combine_simplify_rtx): Avoid converting an explicit
TRUNCATE into a lowpart SUBREG on !TRULY_NOOP_TRUNCATION targets.
* simplify-rtx.c (simplif
help testing the attached patch on an affected
target
would be much appreciated.
Sorry for the inconvenience.
Roger
--
-Original Message-
From: Christophe LYON
Sent: 31 August 2021 13:32
To: Roger Sayle ; 'GCC Patches'
Subject: Re: [PATCH] Preserve SUBREG_PROMOTED_VAR_P on (extend:HI
-gnu (just in case), and confirmation/pre-approval
from Jeff Law that this indeed fixes the build failures seen on
several platforms.
My humble apologies again.
2021-08-31 Roger Sayle
gcc/ChangeLog
* expr.c (convert_modes): Don't use subreg_promoted_mode on a
SUBREG if it can't be
on x86_64-pc-linux-gnu with "make bootstrap"
and "make -k check" with no new failures. Ok for mainline?
2020-08-31 Roger Sayle
gcc/c/ChangeLog
PR c/79412
* c-decl.c (duplicate_decls): On significant mismatches, mark the
types of both (non-function) decl
a full "make bootstrap" and "make -k check"
on x86_64-pc-linux-gnu with no new regressions.
2021-08-24 Roger Sayle
gcc/ChangeLog
PR middle-end/102031
* simplify-rtx.c (simplify_truncation): When comparing precisions
use "subreg_prec" varia
has been committed as obvious, after testing that it
restores the build on nvptx-none and with a "make bootstrap" on
x86_64-pc-linux-gnu to guarantee no surprises [make -k check is
underway].
Sorry again.
2021-08-23 Roger Sayle
gcc/ChangeLog
* simplify-rtx.c (simplify_unary_o
ck" with no new failures, and on a cross-compiler to
nvptx-none, where the function "long foo(char x) { return x; }" now
requires one less instruction.
OK for mainline?
2021-08-29 Roger Sayle
gcc/ChangeLog
* expr.c (convert_modes): Preserve SUBREG_PROMOTED_VAR_P when
.
In C++, division by zero is undefined behaviour; having a flag
brings us one step closer to implementation defined.
This patch has been tested on x86_64-pc-linux-gnu with a "make
bootstrap" and "make -k check" with no new failures.
Ok for mainline?
2021-08-29 Roger Sayl
,
Roger
--
-Original Message-
From: Richard Biener
Sent: 30 August 2021 08:13
To: Roger Sayle
Cc: GCC Patches ; Eric Botcazou
Subject: Re: [PATCH take 3] Experimental -fpreserve-traps option
On Sun, Aug 29, 2021 at 11:28 AM Roger Sayle wrote:
>
>
> This is another attempt to
pefully, the tree-loop optimization experts agree with my analysis/fix.
This patch has been tested on x86_64-pc-linux-gnu with a "make bootstrap"
and "make -k check" with no new failures. Ok for mainline?
2021-08-31 Roger Sayle
Andrew Pinski
gcc/ChangeLo
n advance,
Roger
--
-Original Message-
From: Richard Biener
Sent: 20 August 2021 08:29
To: Roger Sayle
Cc: GCC Patches
Subject: Re: [x86_64 PATCH] Tweak -Os costs for scalar-to-vector pass.
On Thu, Aug 19, 2021 at 6:01 PM Roger Sayle wrote:
>
>
> Doh! ENOPATCH.
>
&g
0, 0 };
v = y_4;
return;
}
This patch has been tested on x86_64-pc-linux-gnu with "make bootstrap"
and "make -k check".
Ok for mainline?
2021-08-18 Roger Sayle
gcc/ChangeLog
* tree-vect-generic.c (expand_vector_operations_1): Use either
gimplify_build1 o
has been tested on x86_64-pc-linux-gnu with "make bootstrap"
and "make -k check" with no new failures.
Ok for mainline?
2021-08-19 Roger Sayle
gcc/ChangeLog
* config/i386/i386-features.c (compute_convert_gain): Provide
more accurate values for CONST_
Doh! ENOPATCH.
-Original Message-
From: Roger Sayle
Sent: 19 August 2021 16:59
To: 'GCC Patches'
Subject: [x86_64 PATCH] Tweak -Os costs for scalar-to-vector pass.
Back in June I briefly mentioned in one of my gcc-patches posts that a
change that should have always reduced code
, after testing that a
"make bootstrap" on x86_64-pc-linux-gnu is unaffected [make -k check
is underway].
Sorry (yet) again.
2021-08-23 Roger Sayle
Jakub Jelinek
gcc/ChangeLog
PR middle-end/102029
* match.pd (shift transformations): Add an additi
gnu with "make bootstrap"
and "make -k check" with no new failures, and also on nvptx-none with
no new failures. Ok for mainline?
2021-09-05 Roger Sayle
gcc/ChangeLog
* simplify-rtx.c (simplify_subreg): Optimize paradoxical subreg
extensions of TRUNCATE.
R
is a multiple of HOST_BITS_PER_WIDE_INT. The fix is
simply to reorder/shuffle the existing tests.
This patch has been tested on x86_64-pc-linux-gnu with "make bootstrap"
and "make -k check" with no new failures.
Ok for mainline?
2021-09-05 Roger Sayle
gcc/ChangeLog
tested on x86_64-pc-linux-gnu with a "make bootstrap"
and "make -k check" with no new failures. Ok for mainline?
2021-09-09 Roger Sayle
gcc/ChangeLog
* generic-match-head.c (single_use_is_op_p): New helper function.
* gimple-match-head.c (single_use_is_
t;make -k check" with no new failures. Ok for mainline?
2021-09-10 Roger Sayle
Richard Biener
gcc/ChangeLog
* match.pd (negation simplifications): Implement some negation
folding transformations from fold-const.c's fold_negate_expr.
86_64-pc-linux-gnu with "make bootstrap"
and "make -k check" with no new failures. Ok for mainline?
2021-09-13 Roger Sayle
gcc/c-family/ChangeLog
PR c/102245
* c-common.c (c_common_truthvalue_conversion) [LSHIFT_EXPR]:
Special case (optimize) sh
a
problem) minimized the inconvenience].
This patch has been tested on x86_64-pc-linux-gnu with "make bootstrap"
and "make -k check" with no new failures, and on a cross-compiler to
nvptx-none, with no new failures in its testsuite. OK for mainline?
2021-09-11 Roger Sa
nd "make -k check" with no
new failures. Note that test1 in the new testcase is changed from
dg-bogus to dg-warning compared with version #1. Ok for mainline?
2021-09-14 Roger Sayle
gcc/ChangeLog
PR c/102245
* match.pd (shift optimizations): Disable recent sign
you think.
Best regards,
Roger
--
-Original Message-
From: Segher Boessenkool
Sent: 06 September 2021 11:14
To: Roger Sayle
Cc: 'GCC Patches'
Subject: Re: [PATCH] Simplify paradoxical subreg extensions of TRUNCATE
On Sun, Sep 05, 2021 at 11:28:30PM +0100, Roger Sayle wrote:
>
k/research
whether and why those checks may have been removed in the past].
This patch has been tested on x86_64-pc-linux-gnu with "make bootstrap"
and "make -k check" with no new failures. Ok for mainline?
2021-09-18 Roger Sayle
gcc/ChangeLog
PR middle-end/88
description (follow-up patches) in future. I'm
happy to defer these changes/hunks until later if reviewers prefer.
The following has been tested on nvptx-none, hosted on x86_64-pc-linux-gnu
with a "make" and "make -k check" with no new failures. Ok for mainline?
2020-09-16 Roger Sa
in future). Are both parts Ok for mainline?
2020-09-17 Roger Sayle
gcc/ChangeLog
* config/nvptx/nvptx.md (define_c_enum "unspec"): New UNSPEC_TANH.
(define_mode_iterator HSFM): New iterator for HFmode and SFmode.
(exp2hf2): New define_insn controlled by TARGE
const gimple (such as
gimple_has_side_effects), and update its prototypes.
These chunks have been (re)tested on x86_64-pc-linux-gnu with a
"make bootstrap" and "make -k check" with no new failures.
Committed to mainline as obvious/pre-approved.
2021-07-13 Roger Sayle
ow,
and that synth_mult (and the addition form) should also avoid generating this
insn?
Thanks in advance,
Roger
--
From: Christophe Lyon
Sent: 05 August 2021 14:53
To: Roger Sayle
Cc: GCC Patches ; Marc Glisse
Subject: Re: [PATCH take 2] Fold (X<mailto:ro...@nextmovesoftware.com&g
no bits that are guaranteed to be set. I have no evidence
that this functionality causes performance issues, it's just that sparse
multipliers provide the largest benefit to CCP.
This patch has been tested on x86_64-pc-linux-gnu with "make bootstrap"
and "make -k check" with no new
t;make -k check", and on x86-pc-linux-gnu with a
"make bootstrap" and "make -k check" both with no new failures.
Future work may also support WIDEN_MULT_EXPR and larger shifts,
but the current matching is already complex enough for v1.0.
Ok for mainline?
2021-08-08 Roger
h has been tested on x86_64-pc-linux-gnu with a
"make bootstrap" and "make -k check" with no new failures.
Ok for mainline?
2021-08-08 Roger Sayle
gcc/ChangeLog
* tree-ssa-ccp.c (value_mask_to_min_max): Helper function to
determine the upper and lower
Doh! ENOPATCH. This time with attachments...
https://gcc.gnu.org/pipermail/gcc-patches/2021-August/576922.html
Roger
--
diff --git a/gcc/config/nvptx/nvptx.md b/gcc/config/nvptx/nvptx.md
index 108de1c..2b18f6a 100644
--- a/gcc/config/nvptx/nvptx.md
+++ b/gcc/config/nvptx/nvptx.md
@@ -614,6
h this patch is now simplified to the
constant value 2.
This patch has been tested on x86_64-pc-linux-gnu with "make bootstrap"
and "make -k check" with no new failures.
Ok for mainline?
2021-08-12 Roger Sayle
gcc/ChangeLog
* tree-ssa-ccp.c (bit_value_binop) [MINUS_E
these failures. Committed as obvious.
2021-07-31 Roger Sayle
gcc/testsuite/ChangeLog
* gcc.target/i386/dec-cmov-2.c: Require -march=core2 with -m32.
Roger
--
-Original Message-
From: sunil.k.pandey
Sent: 31 July 2021 08:13
To: gcc-patches@gcc.gnu.org; gcc-regress
check" with no new failures.
Ok for mainline?
2021-07-31 Roger Sayle
gcc/ChangeLog
* tree-ssa-phiopt.c (cond_removal_in_builtin_zero_pattern):
Renamed from cond_removal_in_popcount_clz_ctz_pattern.
Add support for BSWAP, FFS, PARITY and CLRSB builtins.
(tre
).
This patch has been tested on x86_64-pc-linux-gnu with "make bootstrap"
and "make -k check" with no new failures. Committed as obvious.
2021-08-06 Roger Sayle
gcc/ChangeLog
* tree-ssa-phiopt.c (cond_removal_in_builtin_zero_pattern): Use
CFN_BUILT_IN_CLRSB* inste
ref warnings in
invoke.texi.
This patch has been tested on x86_64-pc-linux-gnu with "make bootstrap"
and "make -k check" with no new failures. Ok for mainline?
2021-09-25 Roger Sayle
gcc/ChangeLog
* gcc/rtl.def (SH_MULT, UH_MULT): New RTX codes for representing
4-pc-linux-gnu with "make bootstrap"
and "make -k check", all languages including Ada, with no new failures.
Ok for mainline?
2021-09-25 Roger Sayle
gcc/ChangeLog
* flag-types.h (trapping_math_model): New enumeration (of bits)
specifying possible floating-
. I've left the existing behaviour the same, so that
memory-to-memory moves (continue to) use ix86_gen_scatch_sse_rtx.
This patch has been tested on x86_64-pc-linux-gnu with "make bootstrap"
and "make -k check" with no new failures.
Ok for mainline?
2021-10-13 Roger Sa
of these differences.
Tested on x86_64-pc-linux-gnu (with and without -march=cascadelake).
2021-10-08 Roger Sayle
gcc/testsuite/ChangeLog
* gcc.target/i386/sse2-mmx-paddsb-2.c: Test for -128 or 128.
* gcc.target/i386/sse2-mmx-paddusb-2.c: Test for -1 or 255.
* gcc.target
);
R0.L = ONES R0;
R0 = R1 & R0;
rts;
This patch has been tested on a cross-compiler to bfin-elf hosted
on x86_64-pc-linux-gnu, but without a toolchain, and shows no
regressions in the compile-only parts of the testsuite.
Ok for mainline?
2021-10-17 Roger Sayle
gcc/Chang
to:
_foo: nop;
nop;
nop;
R0 = 32767 (X);
rts;
_bar: nop;
nop;
R0 = -1 (X);
R0.H = 32767;
rts;
This patch has been tested on x86_64-pc-linux-gnu with "make bootstrap"
and "make -k check" with no new failures. Ok for
-pc-linux-gnu with "make bootstrap"
and "make -k check" with no new failures. In theory, my recent "obvious"
regexp fix to accommodate -march=cascadelake is no longer required, but
there's no harm leaving the testsuite as it is.
Ok for mainline?
2021-10-11
evaluating these expressions at compile-time, when
the mismatch was caught by the testsuite.
Many thanks to Jeff Law for confirming that this patch fixes these
regressions on bfin-elf. Ok for mainline?
2021-10-18 Roger Sayle
gcc/ChangeLog
PR target/102785
* config/bfin/bfin.md
uot;make bootstrap" and
"make -k check" on x86_64-pc-linux-gnu with no new failures.
Ok for mainline?
Sorry again for the temporary inconvenience.
2021-10-15 Roger Sayle
gcc/ChangeLog
* config/i386/i386.c (ix86_hardreg_mov_ok): For vector modes,
allow standard_s
middle-end. Indeed, if flag_trapping_math
is
restricted to only be FLAG_TRAPPING_DEFAULT in a front-end(s), they will be.
Best regards,
Roger
--
-Original Message-
From: Joseph Myers
Sent: 27 September 2021 21:05
To: Roger Sayle
Cc: 'GCC Patches' ; 'Eric Botcazou'
Subject: Re: [PATCH] Make flag_trap
w C-family attribute is unsuitable, is my
logic/implementation in handle_saturating_attribute correct?
2021-09-26 Roger Sayle
gcc/c-family/ChangeLog
* c-attribs (handle_saturating_attribute): New callback function
for a "saturating" attribute to set the
test cases.
This patch has been tested on x86_64-pc-linux-gnu with "make bootstrap"
and "make -k check" with no new failures. Ok for mainline?
2021-09-29 Roger Sayle
Richard Sandiford
gcc/ChangeLog
* gcc/rtl.def (SMUL_HIGHPART, UMUL_HIGH
nd considers valid should be
independent of whether the user specified -fno-trapping-math (or
-ffast-math) to the middle-end.
Thoughts? Ok for mainline?
2021-09-21 Roger Sayle
gcc/cp/ChangeLog
* constexpr.c (cxx_eval_outermost_const_expr): Temporarily disable
the middle-end from honori
atch has been tested on
x86_64-pc-linux-gnu with "make bootstrap" and "make -k check" with no
new failures. Ok for mainline?
2021-10-03 Roger Sayle
gcc/ChangeLog
* combine.c (recog_for_combine): For an unrecognized move/set of
a constant, try fo
sses to eventually generate a much shorter sequence using
an and.pred instruction (just like Nvidia's nvcc compiler).
This patch has been tested nvptx-none with a "make" and "make -k check"
(including newlib) hosted on x86_64-pc-linux-gnu with no new failures.
Ok for mainline?
20
: Segher Boessenkool ; Richard Biener
; Roger Sayle
Subject: Re: [PATCH] Simplify paradoxical subreg extensions of TRUNCATE
[Using this is a convenient place to reply to the thread as a whole]
Richard Biener via Gcc-patches writes:
> On Mon, Sep 6, 2021 at 12:15 PM Segher Boessenkool
> w
Can you double check? Integer division by zero is undefined, but isn't
floating point
division by zero defined by the appropriate IEEE standards?
Roger
--
-Original Message-
From: Xi Ruoyao
Sent: 21 September 2021 14:07
To: Roger Sayle ; 'GCC Patches'
Subject: Re: [RFC/PATCH] C
ember 2021 14:22
To: Roger Sayle ; Jason Merrill
; Jonathan Wakely
Cc: 'Xi Ruoyao' ; 'GCC Patches'
Subject: Re: [RFC/PATCH] C++ constexpr vs. floating point exceptions.
On Tue, Sep 21, 2021 at 02:15:59PM +0100, Roger Sayle wrote:
> Can you double check? Integer division by zero is undefined
ake bootstrap" and
"make -k check" with no new failures on x86_64-pc-linux-gnu.
2021-08-26 Roger Sayle
Richard Biener
gcc/ChangeLog
* match.pd (shift transformations): Remove a redundant
!POINTER_TYPE_P check.
Roger
--
diff --git a/gcc/match.pd b/gcc/
with no new failures. Ok for mainline?
2021-10-24 Roger Sayle
gcc/ChangeLog
* config/i386/i386-expand.c (ix86_expand_v1ti_shift): New helper
function to expand V1TI mode logical shifts by integer constants.
(ix86_expand_v1ti_rotate): New helper function to expand V1TI
g the code into a function returning the final "fract32" result,
as simply specifying an "int" return type for main, results in the
entire function being optimized away, as the result is unused.
Checked-in as obvious.
2021-10-24 Roger Sayle
gcc/testsuite/ChangeLog
check" with no new failures. Ok for mainline?
2021-10-22 Roger Sayle
gcc/ChangeLog
* config/i386/sse.md (v1ti3): New define_insn to
implement V1TImode AND, IOR and XOR on TARGET_SSE2 (and above).
(one_cmplv1ti2): New define expand.
gcc/testsuite/ChangeLog
rts;
_stest_sat_min:
nop;
nop;
nop;
R0 = -32768 (X);
rts;
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap and
make -k check with no new failures, and on a cross-compiler to bfin-elf
with no regressions. Ok for mainline?
2021-
?
2021-11-29 Roger Sayle
Uroš Bizjak
gcc/ChangeLog
PR target/100711
* config/i386/sse.md (define_split): New splitters to simplify
not;vec_duplicate;and as vec_duplicate;andn.
gcc/testsuite/ChangeLog
PR target/100711
* gcc.target/i386/pr100711-1
add_geu:
subfc 5,5,4
addze 3,3
blr
This patch has been tested on powerpc64-unknown-linux-gnu (many thanks to
gcc203.fsffrance.org on the GCC compile farm) with a make bootstrap and make
-k check with now new failures.
Ok for mainline?
2021-12-03 Roger Sayle
gcc/Chan
(with and without RUNTESTFLAGS="--target_board='unix{-m32}'")
with no new failures. Ok for mainline?
2021-12-20 Roger Sayle
Uroš Bizjak
gcc/ChangeLog
* config/i386/i386.md (any_mul_highpart): New code iterator.
(sgnprefix, s): Add attribute support for [su]mu
and the new testcase checked
both with and without -m32. Ok for mainline?
2021-12-21 Roger Sayle
gcc/ChangeLog
* gcc/config/i386/i386.md (define_peephole2): With -Oz use
andl $0,mem instead of movl $0,mem and orl $-1,mem instead of
movl $-1,mem.
gcc
and make -k check with no new failures. Ok for mainline?
2021-12-21 Roger Sayle
gcc/ChangeLog
PR target/103773
* config/i386/i386.md (*movdi_internal): Only use short
push/pop sequence for register (non-memory) destinations.
(*movsi_internal): Likewise.
gcc/testsuite
and make -k check with no new failures, and the new testcase checked
both with and without -m32. Ok for mainline?
2021-12-23 Roger Sayle
Uroš Bizjak
gcc/ChangeLog
PR target/103773
* config/i386/i386.md (*mov_and): New define_insn for
writing a zero to memory
g included the 0/-1 write to memory changes).
Tested (overnight) on x86_64-pc-linux-gnu with make bootstrap and make -k check
with no new failures.
2021-12-22 Roger Sayle
gcc/ChangeLog
PR target/103773
* config/i386/i386.md (*movdi_internal): Only use short
push/po
ret
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check with no new failures. Ok for mainline?
2021-11-28 Roger Sayle
gcc/ChangeLog
* config/i386/i386-expand.c (ix86_expand_v1ti_to_ti): Perform the
conversion via V2
. Ok for mainline?
2021-11-28 Roger Sayle
gcc/ChangeLog
PR target/100711
* config/i386/sse.md (define_split): New splitters to simplify
not;vec_duplicate;and as vec_duplicate;andn.
gcc/testsuite/ChangeLog
PR target/100711
* gcc.target/i386/pr100711-1.c
1) > Y ? -X : 1 simplifies to X >= Y ? -X : 1 when
X is unsigned, as when X + 1 overflows, X is -1, so -X == 1.
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check with no new failures. Ok for mainline?
2021-11-29 Roger Sayle
gcc/Chang
-k check with no new failures. Ok for mainline?
2021-11-25 Roger Sayle
gcc/ChangeLog
PR middle-end/103406
* match.pd (minus @0 @0): Check tree_expr_maybe_infinite_p.
gcc/testsuite/ChangeLog
PR middle-end/103406
* gcc.dg/pr103406.c: New test case.
Thanks
for mainline?
2021-11-22 Roger Sayle
gcc/ChangeLog
PR tree-optimization/98953
PR tree-optimization/103345
* gimple-ssa-store-merging.c (find_bswap_or_nop_1): Handle
BIT_XOR_EXPR and PLUS_EXPR the same as BIT_IOR_EXPR.
(pass_optimize_bswap::execute
Hi Richard,
Many thanks for the patch review.
On Tue, Nov 16, 2021 at 12:38 Richard Biener wrote:
> On Mon, Nov 15, 2021 at 2:04 PM Roger Sayle
> wrote:
> >
> > This patch tidies up the code that GCC generates for simple loops, by
> > selecting/generating a simpl
-gnu with a bootstrap
and regression test just to confirm that there are no unanticipated
side-effects.
Ok for mainline?
2021-11-20 Roger Sayle
Robin Dapp
gcc/ChangeLog
PR target/102117
* tree-ssa-math-opts.c (convert_mult_to_widen): Recognize
signed
%rdx, (%rsi,%rax)
addq$8, %rax
cmpq%rax, %rcx
jne .L3
.L1:ret
This patch has been tested on x86_64-pc-linux-gnu with a make bootstrap
and make -k check with no new failures. Ok for mainline?
2021-11-15 Roger Sayle
gcc/ChangeLog
* tree-ssa-loop-ivopts.
-linux-gnu with make bootstrap
and make -k check with no new failures. Ok for mainline?
2021-11-15 Roger Sayle
gcc/ChangeLog
* config/i386/i386.md (*bmi2_rorx_1): Make conditional
on !optimize_function_for_size_p.
(*3_1): Add preferred_for_size at
On Tue, Nov 23, 2021 at 12:46PM Richard Biener < richard.guent...@gmail.com>
wrote:
> On Thu, Nov 18, 2021 at 4:18 PM Roger Sayle
> wrote:
> > > The patch doesn't add any testcase.
> >
> > The three new attached tests check that the critical invariants have
, but the functionality overlaps and this patch
was nearly ready to submit to gcc-patches when 102986 appeared in bugzilla.
2021-10-30 Roger Sayle
gcc/ChangeLog
PR target/102986
* config/i386/i386-expand.c (ix86_expand_v1ti_to_ti,
ix86_expand_ti_to_v1ti): New helper functions
bytes, shrinks to 5 bytes with this patch).
Please let me know what you think.
Roger
--
-Original Message-
From: Uros Bizjak
Sent: 25 October 2021 09:02
To: Roger Sayle
Cc: GCC Patches
Subject: Re: [PATCH] x86_64: Implement V1TI mode shifts/rotates by a constant
On Sun, Oct 24, 2021
>On 11/6/2021 4:20 PM, Roger Sayle wrote:
>> Simplify paradoxical subreg extensions of TRUNCATE
>> https://gcc.gnu.org/pipermail/gcc-patches/2021-September/578848.html
> So the discussion seemed to end with a recommendation to try and address this
> earlier in the c
I wonder if reviewers could take a look (or a second look) at some of my
outstanding patches.
Four nvptx backend patches:
nvptx: Use cvt to perform sign-extension of truncation.
https://gcc.gnu.org/pipermail/gcc-patches/2021-August/578256.html
nvptx: Add (experimental) support for HFmode with
Hi Richard,
>> I wonder if reviewers could take a look (or a second look) at some of
>> my outstanding patches.
>> PR middle-end/100810: Penalize IV candidates with undefined value
>> bases
>> https://gcc.gnu.org/pipermail/gcc-patches/2021-August/578441.html
>
> I did comment on this one,
Roger Sayle
Jakub Jelinek
gcc/ChangeLog
PR target/102986
* config/i386/i386-expand.c (ix86_expand_v1ti_to_ti,
ix86_expand_ti_to_v1ti): New helper functions.
(ix86_expand_v1ti_shift): Check if the amount operand is an
integer constant, and expand
and make -k check with no new failures. Interestingly the correct
behaviour is already tested by (amongst other tests) sse2-v1ti-shift-3.c
that confirms V1TImode rotates by constants match rotlti3/rotrti3.
Ok for mainline?
2021-11-01 Roger Sayle
* config/i386/i386.md (ti3): Provi
Hi Richard,
Many thanks for the review. Here's the final version that I've committed,
including
your suggested improvements, following another make bootstrap and make -k check
on x86_64-pc-linux-gnu with no new failures. Thanks again.
2021-12-01 Roger Sayle
Richard Biener
I missed a spot when adding the "#if __BYTE_ORDER__ == ..." guards to
the new test case for PR tree-optimization/103345. Committed as obvious.
2021-11-30 Roger Sayle
gcc/testsuite/ChangeLog
PR testsuite/103477
* gcc.dg/tree-ssa/pr103345.c: Correct xor test for
but I'm happy to change this].
This patch has been tested on x86_64-pc-linux-gnu with a make bootstrap
and make -k check with no new failures. Ok for mainline?
2021-12-10 Roger Sayle
gcc/ChangeLog
PR ipa/103601
* ipa-modref-tree.h (useful_for_kill_p): Zero width ac
t splitter, either
eliminating the instruction or turning it into a simple move.
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, both with and without "--target_board='unix{-m32}'"
with no new failures. OK for mainline?
2021-12-13 Roger Sayle
gcc
reasonable (but this patch has been tested
both with and without this last change, if it's consider controversial).
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, both with and without "--target_board='unix{-m32}'"
with no new failures. OK for mainl
3513 bytes total
down to 3668516 bytes).
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check with no new failures. Ok for mainline?
2021-12-10 Roger Sayle
gcc/ChangeLog
PR target/32803
* common.opt (Oz): New command line option.
* lto
3
blr
This patch has been tested on powerpc64-unknown-linux-gnu (many thanks
to gcc203.fsffrance.org on the GCC compile farm) with a make bootstrap
and make -k check with now new failures.
Ok for mainline?
2021-12-02 Roger Sayle
gcc/ChangeLog
PR target/43892
-multilib
--enable-targets=all --with-arch-32=mips32r2 --with-arch-64=mips64r2
(thanks to the compile farm's gcc230.fsffrance.org) and a cross-compiler
to mips64-linux-gnu hosted on x86_64-pc-linux-gnu.
Ok for mainline?
2021-12-10 Roger Sayle
gcc/ChangeLog
* config/mips/mips.c
l/gcc-patches/2021-December/585977.html)
I'll include a testcase for this functionality with the final
rs6000 backend patch in the series.
Ok for mainline?
2021-12-10 Roger Sayle
gcc/ChangeLog
* combine.c (try_combine): When I2 or I3 is PARALLEL without
clobbers that is eff
1 - 100 of 610 matches
Mail list logo
